#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
// author : AtabeyR
#define pb push_back
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(v) v.begin(), v.end()
#define OPT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define sec second
#define fi first
#define int ll
#define print(k) cerr << "Ans : "; cout << k << endl;
#define ins insert
#define bpc __builtin_popcountll
#define skip continue
#define endll '\n'
#define gcd(a, b) __gcd(a, b)
#define lcm(a, b) a*b / (__gcd(a, b))
typedef long long ll;
typedef unsigned long long ull;
const int oo = 0x3F3F3F3F;
const int ooo = 0x3F3F3F3F3F3F3F3FLL;
const int mod = 998244353;
const int sz = 1e3+5;
using namespace std;
using namespace __gnu_pbds;
template<class T> using ordered_set = tree<T, null_type,less<T>, rb_tree_tag,tree_order_statistics_node_update>;
void open(string s, string f)
{
freopen((s + ".txt").c_str(), "r", stdin);
freopen((f + ".txt").c_str(), "w", stdout);
}
int n, m, k, a[sz][sz], b[sz][sz];
void solve(int t)
{
cin >> n >> m;
for(int i = 1; i<=n; i++)
{
for(int j = 1; j<=m; j++)
{
cin >> a[i][j];
b[i][j] = a[i][j];
}
}
for(int i = 1; i<=n; i++)
{
for(int j = 1; j<=m; j++)
{
a[i][j] = max(a[i][j], a[i-1][j] - 1);
a[i][j] = max(a[i][j], a[i][j-1] - 1);
}
}
for(int i = n; i>=1; i--)
{
for(int j = m; j>=1; j--)
{
a[i][j] = max(a[i][j], a[i+1][j] - 1);
a[i][j] = max(a[i][j], a[i][j+1] - 1);
}
}
int ans = -ooo;
for(int i = 1; i<=n; i++)
{
for(int j = 1; j<=m; j++)
{
ans = max(ans, a[i][j] - b[i][j]);
}
}
cout << ans - 1;
}
int32_t main()
{
// open("in", "out");
OPT
int t = 1;
//cin >> t;
for(int i = 1; i<=t; i++)
solve(i);
}
Compilation message
maxcomp.cpp: In function 'void open(std::string, std::string)':
maxcomp.cpp:35:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
35 | freopen((s + ".txt").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
maxcomp.cpp:36:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
36 | freopen((f + ".txt").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2516 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2516 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
4692 KB |
Output is correct |
12 |
Correct |
1 ms |
4572 KB |
Output is correct |
13 |
Correct |
1 ms |
4440 KB |
Output is correct |
14 |
Correct |
1 ms |
4440 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2516 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4444 KB |
Output is correct |
14 |
Correct |
1 ms |
4692 KB |
Output is correct |
15 |
Correct |
1 ms |
4572 KB |
Output is correct |
16 |
Correct |
1 ms |
4440 KB |
Output is correct |
17 |
Correct |
1 ms |
4440 KB |
Output is correct |
18 |
Correct |
76 ms |
24564 KB |
Output is correct |
19 |
Correct |
76 ms |
24656 KB |
Output is correct |
20 |
Correct |
72 ms |
24172 KB |
Output is correct |
21 |
Correct |
82 ms |
24692 KB |
Output is correct |
22 |
Correct |
76 ms |
24680 KB |
Output is correct |
23 |
Correct |
75 ms |
24620 KB |
Output is correct |
24 |
Correct |
94 ms |
24916 KB |
Output is correct |